These knee pads are made from soft and flexible Ethylene-Vinyl Acetate which has no harm to the skin. They provide more protection than those made from cotton canvas due to its strong but soft material. The knee pads are designed to fit our Action Trousers W85 . The knee pockets of Action Trousers will fully cover the knee pads so the knee pads do not directly contact the skin. They may fit trousers of other brands or our future work trousers as well. The length of pads can be cut short to suit knee height. The knee pads are sold in pairs.